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Sökning: (WFRF:(Wang Liang)) srt2:(2020-2024) > Lattice Oxygen Acti...

Lattice Oxygen Activation through Deep Oxidation of Co4N by Jahn–Teller–Active Dopants for Improved Electrocatalytic Oxygen Evolution

Han, Jingrui (författare)
School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P.R. China
Wang, Haibin (författare)
School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P.R. China
Wang, Yuting (författare)
School of Science, Tianjin University, Tianjin 300350, P.R. China
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Zhang, Hao (författare)
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Materials and Devices, Soochow University, Suzhou 215000, P.R. China
Li, Jun (författare)
Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
Xia, Yujian (författare)
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Materials and Devices, Soochow University, Suzhou 215000, P.R. China
Zhou, Jieshu (författare)
School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P.R. China
Wang, Ziyun (författare)
School of Chemical Sciences, the University of Auckland, Auckland 1010, New Zealand
Luo, Mingchuan (författare)
School of Materials Science and Engineering, Peking University, Beijing 100871, P.R. China
Wang, Yuhang (författare)
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Materials and Devices, Soochow University, Suzhou 215000, P.R. China
Wang, Ning (författare)
Beijing Institute of Smart Energy, Beijing 102209, P. R. China
Cortés, Emiliano (författare)
Nanoinstitute Munich, Faculty of Physics, Ludwig Maximilians University of Munich, 80539 Munich, Germany
Wang, Zumin (författare)
School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P.R. China
Vomiero, Alberto (författare)
Luleå tekniska universitet,Materialvetenskap,Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, 30172 Venezia Mestre, Italy
Huang, Zhen-Feng (författare)
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P.R. China
Ren, Hangxing (författare)
PERIC Hydrogen Technologies Co., Ltd., Handan 056027, P.R. China; School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R.China
Yuan, Xianming (författare)
PERIC Hydrogen Technologies Co., Ltd., Handan 056027, P.R. China
Chen, Songhua (författare)
College of Chemistry and Material Science, Longyan University, Longyan 364012, P.R. China
Feng, Donghui (författare)
PERIC Hydrogen Technologies Co., Ltd., Handan 056027, P.R. China
Sun, Xuhui (författare)
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Materials and Devices, Soochow University, Suzhou 215000, P.R. China
Liu, Yongchang (författare)
School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P.R. China; State Key Laboratory of Hydraulic Engineering Intelligent Construction and Operation, Tianjin University, Tianjin 300350, P.R. China
Liang, Hongyan (författare)
School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P.R. China; College of Chemistry and Material Science, Longyan University, Longyan, 364012 P.R. China
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School of Materials Science and Engineering, Tianjin University, Tianjin 300350, PR. China School of Science, Tianjin University, Tianjin 300350, P.R. China (creator_code:org_t)
John Wiley & Sons, 2024
2024
Engelska.
Ingår i: Angewandte Chemie International Edition. - : John Wiley & Sons. - 1433-7851 .- 1521-3773. ; 63:33
Relaterad länk:
https://urn.kb.se/re...
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https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • Triggering the lattice oxygen oxidation mechanism is crucial for improving oxygen evolution reaction (OER) performance, because it could bypass the scaling relation limitation associated with the conventional adsorbate evolution mechanism through the direct formation of oxygen–oxygen bond. High-valence transition metal sites are favorable for activating the lattice oxygen, but the deep oxidation of pre-catalysts suffers from a high thermodynamic barrier. Here, taking advantage of the Jahn–Teller (J–T) distortion induced structural instability, we incorporate high-spin Mn3+ (  ) dopant into Co4N. Mn dopants enable a surface structural transformation from Co4N to CoOOH, and finally to CoO2, as observed by various in situ spectroscopic investigations. Furthermore, the reconstructed surface on Mn-doped Co4N triggers the lattice oxygen activation, as evidenced experimentally by pH-dependent OER, tetramethylammonium cation adsorption and online electrochemical mass spectrometry measurements of 18O-labelled catalysts. In general, this work not only offers the introducing J–T effect approach to regulate the structural transition, but also provides an understanding about the influence of the catalyst's electronic configuration on determining the reaction route, which may inspire the design of more efficient catalysts with activated lattice oxygen.

Ämnesord

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

Nyckelord

lattice oxygen oxidation
high-valence cobalt
Mn dopants
oxygen evolution
Experimentell fysik
Experimental Physics

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